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Hello all,

Is there an easy way to sweep multiple capacitances at once? I tried using x inside that capacitance value as a multiplier so that I could see the impact of changing the capacitors in a notch filter. It gave me a bode plotting error every time I tried to simulate it.

I want to sweep c5 and c3 at the same time but I cannot seem to get it to work correctly.

Thank you.

Have you tried to use the Parameter element (in the Unsorted Elements, the first one)? You can specify the value of the parameters, or make a sweep, in the inputs for the simulation. You can also check Lesson5 in the CircuitLab Academy (Help section).

Yeah I've used the x parameter to sweep multiple capacitors before. The trouble is, If I want to sweep a capacitor and say, a potentiometer at the same time, I can't come up with an x parameter that can be used for both while having a streamlined scaling like a pots "k" value. To sweep a cap I have needed to have F's in the x value in the sweep function to get the bode plot to plot without giving me an error.

Is there some way algebraically to sweep multiple values by 0 -> 1 while maintaining their specific units?

You can name/rename a second parameter, like you do to define a property. There is an example in Lesson 5, if I remember well, where more than one parameter is used to define a component.

You can sweep multiple capacitances by defining a global parameter (e.g., x) and setting C3 = C3_base * x and C5 = C5_base * x, then using a .step param x command in your SPICE or simulator. Make sure all dependencies are properly defined and the simulator supports parameter sweeps in AC analysis. Also, double-check syntax, Bode plot errors often come from undefined or misused parameters. Doctiplus

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